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/*! * MediaWiki Widgets - TitleWidget class. * * @copyright 2011-2015 MediaWiki Widgets Team and others; see AUTHORS.txt * @license The MIT License (MIT); see LICENSE.txt */ ( function () { var hasOwn = Object.prototype.hasOwnProperty; /** * Mixin for title widgets * * @class * @abstract * * @constructor * @param {Object} [config] Configuration options * @cfg {number} [limit=10] Number of results to show * @cfg {number} [namespace] Namespace to prepend to queries * @cfg {number} [maxLength=255] Maximum query length * @cfg {boolean} [relative=true] If a namespace is set, display titles relative to it * @cfg {boolean} [suggestions=true] Display search suggestions * @cfg {boolean} [showRedirectTargets=true] Show the targets of redirects * @cfg {boolean} [showImages] Show page images * @cfg {boolean} [showDescriptions] Show page descriptions * @cfg {boolean} [showDisambigsLast] Show disambiguation pages as the last results * @cfg {boolean} [showMissing=true] Show missing pages * @cfg {boolean} [showInterwikis=false] Show pages with a valid interwiki prefix * @cfg {boolean} [addQueryInput=true] Add exact user's input query to results * @cfg {boolean} [excludeCurrentPage] Exclude the current page from suggestions * @cfg {boolean} [excludeDynamicNamespaces] Exclude pages whose namespace is negative * @cfg {boolean} [validateTitle=true] Whether the input must be a valid title * @cfg {boolean} [required=false] Whether the input must not be empty * @cfg {boolean} [highlightSearchQuery=true] Highlight the partial query the user used for this title * @cfg {Object} [cache] Result cache which implements a 'set' method, taking keyed values as an argument * @cfg {mw.Api} [api] API object to use, creates a default mw.Api instance if not specified */ mw.widgets.TitleWidget = function MwWidgetsTitleWidget( config ) { // Config initialization config = $.extend( { maxLength: 255, limit: 10 }, config ); // Properties this.limit = config.limit; this.maxLength = config.maxLength; this.namespace = config.namespace !== undefined ? config.namespace : null; this.relative = config.relative !== undefined ? config.relative : true; this.suggestions = config.suggestions !== undefined ? config.suggestions : true; this.showRedirectTargets = config.showRedirectTargets !== false; this.showImages = !!config.showImages; this.showDescriptions = !!config.showDescriptions; this.showDisambigsLast = !!config.showDisambigsLast; this.showMissing = config.showMissing !== false; this.showInterwikis = !!config.showInterwikis; this.addQueryInput = config.addQueryInput !== false; this.excludeCurrentPage = !!config.excludeCurrentPage; this.excludeDynamicNamespaces = !!config.excludeDynamicNamespaces; this.validateTitle = config.validateTitle !== undefined ? config.validateTitle : true; this.highlightSearchQuery = config.highlightSearchQuery === undefined ? true : !!config.highlightSearchQuery; this.cache = config.cache; this.api = config.api || new mw.Api(); // Supports: IE10, FF28, Chrome23 // eslint-disable-next-line compat/compat this.compare = window.Intl && Intl.Collator ? // eslint-disable-next-line compat/compat new Intl.Collator( mw.language.bcp47( mw.config.get( 'wgContentLanguage' ) ), { sensitivity: 'base' } ).compare : null; // Initialization this.$element.addClass( 'mw-widget-titleWidget' ); }; /* Setup */ OO.initClass( mw.widgets.TitleWidget ); /* Static properties */ mw.widgets.TitleWidget.static.interwikiPrefixesPromiseCache = {}; /* Methods */ /** * Get the current value of the search query * * @abstract * @return {string} Search query */ mw.widgets.TitleWidget.prototype.getQueryValue = null; /** * Get the namespace to prepend to titles in suggestions, if any. * * @return {number|null} Namespace number */ mw.widgets.TitleWidget.prototype.getNamespace = function () { return this.namespace; }; /** * Set the namespace to prepend to titles in suggestions, if any. * * @param {number|null} namespace Namespace number */ mw.widgets.TitleWidget.prototype.setNamespace = function ( namespace ) { this.namespace = namespace; }; mw.widgets.TitleWidget.prototype.getInterwikiPrefixesPromise = function () { var api, cache, key; if ( !this.showInterwikis ) { return $.Deferred().resolve( [] ).promise(); } api = this.getApi(); cache = this.constructor.static.interwikiPrefixesPromiseCache; key = api.defaults.ajax.url; if ( !Object.prototype.hasOwnProperty.call( cache, key ) ) { cache[ key ] = api.get( { action: 'query', meta: 'siteinfo', siprop: 'interwikimap', // Cache client-side for a day since this info is mostly static maxage: 60 * 60 * 24, smaxage: 60 * 60 * 24, // Workaround T97096 by setting uselang=content uselang: 'content' } ).then( function ( data ) { return data.query.interwikimap.map( function ( interwiki ) { return interwiki.prefix; } ); } ); } return cache[ key ]; }; /** * Get a promise which resolves with an API response for suggested * links for the current query. * * @return {jQuery.Promise} Suggestions promise */ mw.widgets.TitleWidget.prototype.getSuggestionsPromise = function () { var api = this.getApi(), query = this.getQueryValue(), widget = this, promiseAbortObject = { abort: function () { // Do nothing. This is just so OOUI doesn't break due to abort being undefined. } }; if ( !mw.Title.newFromText( query ) ) { // Don't send invalid titles to the API. // Just pretend it returned nothing so we can show the 'invalid title' section return $.Deferred().resolve( {} ).promise( promiseAbortObject ); } return this.getInterwikiPrefixesPromise().then( function ( interwikiPrefixes ) { // Optimization: check we have any prefixes. if ( interwikiPrefixes.length ) { var interwiki = query.slice( 0, Math.max( 0, query.indexOf( ':' ) ) ); if ( interwiki !== '' && interwikiPrefixes.indexOf( interwiki ) !== -1 ) { // Interwiki prefix is valid: return the original query as a valid title // NB: This doesn't check if the title actually exists on the other wiki return $.Deferred().resolve( { query: { pages: [ { title: query } ] } } ).promise( promiseAbortObject ); } } // Not a interwiki: do a prefix-search API lookup of the query. var prefixSearchRequest = api.get( widget.getApiParams( query ) ); promiseAbortObject.abort = prefixSearchRequest.abort.bind( prefixSearchRequest ); // TODO ew return prefixSearchRequest.then( function ( prefixSearchResponse ) { if ( !widget.showMissing ) { return prefixSearchResponse; } // Add the query title as the first result, after looking up its details. var queryTitleRequest = api.get( { action: 'query', titles: query } ); promiseAbortObject.abort = queryTitleRequest.abort.bind( queryTitleRequest ); return queryTitleRequest.then( function ( queryTitleResponse ) { // By default, return the prefix-search result. var result = prefixSearchResponse; if ( prefixSearchResponse.query === undefined ) { // There are no prefix-search results, so make the only result the query title. // The API response structures are identical because both API calls are action=query. result.query = queryTitleResponse.query; } else if ( queryTitleResponse.query.pages[ -1 ] !== undefined && !widget.responseContainsNonExistingTitle( prefixSearchResponse, queryTitleResponse.query.pages[ -1 ].title ) ) { // There are prefix-search results, but the query title isn't in them, // so add it as a new result. It's under the new key 'queryTitle', because // all other results will be under their page ID or a negative integer ID, // and the keys aren't actually used for anything. result.query.pages.queryTitle = queryTitleResponse.query.pages[ -1 ]; // Give it the lowest possible sort-index (the API only returns index > 0) // to make this result be sorted at the top. result.query.pages.queryTitle.index = 0; } return result; } ); } ); } ).promise( promiseAbortObject ); }; /** * Check for the existence of a given title in an API result set. * * As the title is known not to exist, this doesn't check in apiResponse.query.pages, * but only in the redirect targets in apiResponse.query.redirects. * * @private * @param {Object} apiResponse The API result set to search in. * @param {string} title The page title to search for. * @return {boolean} */ mw.widgets.TitleWidget.prototype.responseContainsNonExistingTitle = function ( apiResponse, title ) { // Make sure there are redirects in the data. if ( apiResponse.query.redirects === undefined ) { return false; } // Check the targets against the given title. for ( var redirect in apiResponse.query.redirects ) { if ( apiResponse.query.redirects[ redirect ].to === title ) { return true; } } // The title wasn't found. return false; }; /** * Get API params for a given query * * @param {string} query User query * @return {Object} API params */ mw.widgets.TitleWidget.prototype.getApiParams = function ( query ) { var params = { action: 'query', prop: [ 'info', 'pageprops' ], generator: 'prefixsearch', gpssearch: query, gpsnamespace: this.namespace !== null ? this.namespace : undefined, gpslimit: this.limit, ppprop: 'disambiguation' }; if ( this.showRedirectTargets ) { params.redirects = true; } if ( this.showImages ) { params.prop.push( 'pageimages' ); params.pithumbsize = 80; params.pilimit = this.limit; } if ( this.showDescriptions ) { params.prop.push( 'description' ); } return params; }; /** * Get the API object for title requests * * @return {mw.Api} MediaWiki API */ mw.widgets.TitleWidget.prototype.getApi = function () { return this.api; }; /** * Get option widgets from the server response * * @param {Object} data Query result * @return {OO.ui.OptionWidget[]} Menu items */ mw.widgets.TitleWidget.prototype.getOptionsFromData = function ( data ) { var i, len, index, option, pageExists, pageExistsExact, suggestionPage, page, redirect, redirects, currentPageName = new mw.Title( mw.config.get( 'wgRelevantPageName' ) ).getPrefixedText(), items = [], titles = [], disambigs = [], titleObj = mw.Title.newFromText( this.getQueryValue() ), redirectsTo = {}, redirectIndices = {}, pageData = {}; if ( data.redirects ) { for ( i = 0, len = data.redirects.length; i < len; i++ ) { redirect = data.redirects[ i ]; redirectsTo[ redirect.to ] = redirectsTo[ redirect.to ] || []; redirectsTo[ redirect.to ].push( redirect.from ); // Save the lowest index for this redirect target. redirectIndices[ redirect.to ] = Math.min( redirectIndices[ redirect.to ] || redirect.index, redirect.index ); } } for ( index in data.pages ) { suggestionPage = data.pages[ index ]; // When excludeCurrentPage is set, don't list the current page unless the user has type the full title if ( this.excludeCurrentPage && suggestionPage.title === currentPageName && suggestionPage.title !== titleObj.getPrefixedText() ) { continue; } // When excludeDynamicNamespaces is set, ignore all pages with negative namespace if ( this.excludeDynamicNamespaces && suggestionPage.ns < 0 ) { continue; } pageData[ suggestionPage.title ] = { known: suggestionPage.known !== undefined, missing: suggestionPage.missing !== undefined, redirect: suggestionPage.redirect !== undefined, disambiguation: OO.getProp( suggestionPage, 'pageprops', 'disambiguation' ) !== undefined, imageUrl: OO.getProp( suggestionPage, 'thumbnail', 'source' ), description: suggestionPage.description, // Sort index index: suggestionPage.index !== undefined ? suggestionPage.index : redirectIndices[ suggestionPage.title ], originalData: suggestionPage }; // Throw away pages from wrong namespaces. This can happen when 'showRedirectTargets' is true // and we encounter a cross-namespace redirect. if ( this.namespace === null || this.namespace === suggestionPage.ns ) { titles.push( suggestionPage.title ); } redirects = hasOwn.call( redirectsTo, suggestionPage.title ) ? redirectsTo[ suggestionPage.title ] : []; for ( i = 0, len = redirects.length; i < len; i++ ) { pageData[ redirects[ i ] ] = { missing: false, known: true, redirect: true, disambiguation: false, description: mw.msg( 'mw-widgets-titleinput-description-redirect', suggestionPage.title ), // Sort index, just below its target index: pageData[ suggestionPage.title ].index + 0.5, originalData: suggestionPage }; titles.push( redirects[ i ] ); } } titles.sort( function ( a, b ) { return pageData[ a ].index - pageData[ b ].index; } ); // If not found, run value through mw.Title to avoid treating a match as a // mismatch where normalisation would make them matching (T50476) pageExistsExact = ( hasOwn.call( pageData, this.getQueryValue() ) && ( !pageData[ this.getQueryValue() ].missing || pageData[ this.getQueryValue() ].known ) ); pageExists = pageExistsExact || ( titleObj && hasOwn.call( pageData, titleObj.getPrefixedText() ) && ( !pageData[ titleObj.getPrefixedText() ].missing || pageData[ titleObj.getPrefixedText() ].known ) ); // Offer the exact text as a suggestion if the page exists if ( this.addQueryInput && pageExists && !pageExistsExact ) { titles.unshift( this.getQueryValue() ); // Ensure correct page metadata gets used pageData[ this.getQueryValue() ] = pageData[ titleObj.getPrefixedText() ]; } if ( this.cache ) { this.cache.set( pageData ); } for ( i = 0, len = titles.length; i < len; i++ ) { page = hasOwn.call( pageData, titles[ i ] ) ? pageData[ titles[ i ] ] : {}; option = this.createOptionWidget( this.getOptionWidgetData( titles[ i ], page ) ); if ( this.showDisambigsLast && page.disambiguation ) { disambigs.push( option ); } else { items.push( option ); } } return items.concat( disambigs ); }; /** * Create a menu option widget with specified data * * @param {Object} data Data for option widget * @return {OO.ui.MenuOptionWidget} Data for option widget */ mw.widgets.TitleWidget.prototype.createOptionWidget = function ( data ) { return new mw.widgets.TitleOptionWidget( data ); }; /** * Get menu option widget data from the title and page data * * @param {string} title Title object * @param {Object} data Page data * @return {Object} Data for option widget */ mw.widgets.TitleWidget.prototype.getOptionWidgetData = function ( title, data ) { var mwTitle = new mw.Title( title ), description = data.description; if ( !description && ( data.missing && !data.known ) ) { description = mw.msg( 'mw-widgets-titleinput-description-new-page' ); } return { data: this.namespace !== null && this.relative ? mwTitle.getRelativeText( this.namespace ) : title, url: mwTitle.getUrl(), showImages: this.showImages, imageUrl: this.showImages ? data.imageUrl : null, description: this.showDescriptions ? description : null, missing: data.missing && !data.known, redirect: data.redirect, disambiguation: data.disambiguation, query: this.highlightSearchQuery ? this.getQueryValue() : null, compare: this.compare }; }; /** * Get title object corresponding to given value, or #getQueryValue if not given. * * @param {string} [value] Value to get a title for * @return {mw.Title|null} Title object, or null if value is invalid */ mw.widgets.TitleWidget.prototype.getMWTitle = function ( value ) { var title = value !== undefined ? value : this.getQueryValue(), // mw.Title doesn't handle null well titleObj = mw.Title.newFromText( title, this.namespace !== null ? this.namespace : undefined ); return titleObj; }; /** * Check if the query is valid * * @return {boolean} The query is valid */ mw.widgets.TitleWidget.prototype.isQueryValid = function () { if ( !this.validateTitle ) { return true; } if ( !this.required && this.getQueryValue() === '' ) { return true; } return !!this.getMWTitle(); }; }() );
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